583 



SUBJECT-INDEX. 



decomposition by, t, 31 ; org.inic oxida- 

 tion, 1, 43-6, 57 ; growth and organic, 

 1, 124 ; animal, vegetal, and environ- 

 ment, 1, 145-6, 149 ; alloy melting 

 points, 1, 276 ; organic cliange and 

 rhythm in terrestrial, 1, 411, 473 ; 

 effect on physiological units, 1, 488 ; 

 fish respiratory organs, 2, 325 ; evolved 

 by nou -nitrogenous substances, 2, 353 ; 

 animal preservation, 2, 414 ; verte- 

 brate expenditure and genesis, 2, 447- 

 8, 453 ; insect genesis, 2, 455. 



Mectocotiiius, individuality, 1, 207. 



Hepaticce : Schleiden on, 2, 47, 49 j 

 continuous and discontinuous develop- 

 ment, 2, 49 ; vascular system, 2, 263 ; 

 genesis and development, 2, 412. 



Meradeum : leaf symmetry, 2, 139-40 ; 

 floral symmetry, 2, 156 ; axial and 

 foliar organs, 2, 511-16. 



Heredity : structural modification, 1, 

 189 ; general truths, 1, 238-41 ; trans- 

 mission of congenital peculiarities, 1, 

 241-4 ; atavism, or recurrence of an- 

 cestral traits, 1, 243, 252 ; structure 

 and altered function, 1, 241-52, 255- 

 6; physiological units, restime, 1, 286- 

 91; natural selection, 1, 460 2, 409, 

 474 ; ethnology and natural selection, 



1, 469 ; cell doctrine, 2, 12 ; physio- 

 logical development, 2, 224, 229; 

 wood formation, 2, 270; tissue diffe- 

 rentiation, 2, 286, 295-9, 380 ; respira- 

 tory system, 2, 293 ; osseous dili'ereu- 

 tiation, 2, 342 ; muscular adaptation, 



2, 359 ; persistence of force and phy- 

 siological adaptation, 2, 3>7 ; vegeial 

 vascular system, 2, 513, 551, 557, 565. 



Hermaphrodism, vegetal and animal, 1, 

 278-9, 280. 



Heterogeneity : of vital change, 1, 65-71, 

 88, 90; of development, 1, 133-41, 153; 

 functional, 1, 160-4, 168 ; of organic 

 matter, 1, 286-91 ; organic, and in- 

 stability of homogeneous, 1, 421-3, 

 430, 465, 473 ; segregation of evolu- 

 tion, 1, 426-8, 429-31, 4K5. 



Heterogenesis : classification, 1, 210-6, 

 273; animal nutrition, 1, 228-33, 

 235-7 ; natural selection, 2, 233-7 ; 

 heredity, 1, 233. 



Histology (see Physiologr). 



Hollyhock, floral symmetry, 2, 152, 154. 



Homogeneous, insiabiiity of tlie: vari- 

 ation, i, 264-7, 267-8, 269-70, 230; 

 evolution, 1, 421-3, 428, 465, 473; 



morphological development, S, 7-9, 

 210 ; direction of vegetal growth, 2, 

 164; radial syniTnetry, 2-, 173; phy- 

 siological differentiation, 2, 377, 385. 

 Honiogenesis (see Gamogenesis). 

 Homology, articulate integration, 2^ 99- 



102, liJ8. 

 Hooker, Sir J. D. : European plar.ts in 

 jS^ew Zealand, 1, 389 ; vegetal dis' 

 tribution, 1, 391 ; amphibious and 

 terrestrial plants, 1, 396 ; vegetal 

 ovowth, 2, 53; h-xlaiwpJiorce, 2, 244 j 

 balanophorce and rajjie-siacece, 2, 257; 

 structural complexity, 2, 278, 280 ; 

 vegetal and animal distribution aid 

 age, 2, 280 j bean vascular system, 2, 

 51 :J. 



Hooker, Sir W., on jungermanniaceo:, 2, 

 49. 



Horns, natural selection and size, J, 

 451-3. 



Huxley, Prof. T. H. : "continuous" 

 and " discontinuous " development, 

 1, 135 ; life without organization, 1, 

 154; pseud-ova, i, 21^; classification 

 of development, 1, 215 ; hermaphro- 

 dism, i, 281 ; zoological classification, 

 1, 301-3, 307 ; " On per.^istent tvpes/' 

 1, 324-6; the cell-doetrine, 2, 13; 

 SpongklcB, 2, 81 ; articidata, 2, 101 ; 

 vertebrate embryo,,?, 103, 108; ecJiino- 

 dermata, 2, 179 ; moUuscan sym- 

 metry, 2, 185 ; ossification, 2, 207 ; 

 ccelenterata, 2, 285 ; tegumentary 

 organs, 2, 286, 297, 300; vertebrate 

 sensory organs, 2, 304, 305 ; Kyber on 

 aphis, 2, 455; Owen's vertebrate 

 theory, 2, 532. 



Hyacinth, symmetry, 2, 126, 147. 



Kydra (see Coelenterata). 



Hydro-carbons : physic il properties, 1, 

 6 ; chemical properties, 1, 8, 9 ; of 

 living tissue, 2, 10; tissue differentia- 

 tion, 2, 303. 



Hifdrogastrum : symmetry, 2, 123 ; 

 sexual genesis, 2, 429. 



Hydrogen: chemical and physical prO' 

 "perties, 1, 3-5, 20, 22 ; binary com- 

 pounds, 1, 6, 8, 9; ternary, 1, 10-12 j 

 quaternary, 1, 12-14, 23. 



Hijdrozoa {see Ccelenteraia), 



Hi/menopiera {see Insects). 



Hypertrophy {see Disease), 



Ideas {see Psychology), 



